* The MODAL windows supports an optional FLASHEXIT clause instead of
an usual blocking of exit from a modal form at activate of a child form.
It is an experimental feature.

* Added Min and Max range for the NON CLIENT attributes of windows.

* Added possibility to set the position of the dialog boxes
at runtime with the following new commands:
SET DIALOGBOX [ POSITION ] ROW <nRow>|<@VarCodeBlockRow>|<NIL> ;
COL <nCol>|<@VarCodeBlockCol>|<NIL>
SET DIALOGBOX [ POSITION ] CENTER OF PARENT
SET DIALOGBOX [ POSITION ] CENTER OF <hWnd>
SET DIALOGBOX [ POSITION ] CENTER OF DESKTOP
SET DIALOGBOX [ POSITION ] DISABLE